I like to pretend that the impetus for the stunt came not from a mentality that values civic minded free speech but rather from the CCC couple-whining (and getting its way) to bing about blocking tank man globally "just this once on the anniversary".
1) Some queries are blocked. This results in "Nothing found", even when there obviously are images...
2) Some images are blocked. If you use a query that bypasses the word-filter, some images are still removed from the result list anyway.
It's very clear that what we're seeing is the Chinese results for Bing, but everywhere in the world...